<template>
<div>
  <div v-if="isExternal" :style="styleExternalIcon" class="svg-external-icon svg-icon" v-on="$listeners" />
  <svg v-else :class="svgClass" aria-hidden="true" v-on="$listeners">
    <use :href="iconName" />
  </svg>
</div>
</template>

<script>
import {
  isExternal
} from '@/utils/validate'
export default {
  name: 'SvgIcon',
  props: {
    iconClass: {
      type: String,
      required: true
    },
    className: {
      type: String,
      default: ''
    }
  },
  computed: {
    isExternal() {
      return isExternal(this.iconClass)
    },
    iconName() {
      return `#icon-${this.iconClass}`
    },
    svgClass() {
      if (this.className) {
        return 'svg-icon ' + this.className
      } else {
        return 'svg-icon'
      }
    },
    styleExternalIcon() {
      return {
        mask: `url(${this.iconClass}) no-repeat 50% 50%`,
        '-webkit-mask': `url(${this.iconClass}) no-repeat 50% 50%`
      }
    }
  }
}
</script>
<style lang="scss" scoped>
  // $color:#11b8fa;
  $color: #03b8ff;

  .svg-icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    fill: $color;
    overflow: hidden;
  }

  .svg-external-icon {
    background-color: $color;
    mask-size: cover !important;
    display: inline-block;
  }
</style>
